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X5083

Intersil Corporation
Part Number X5083
Manufacturer Intersil Corporation
Description CPU Supervisor
Published Jun 4, 2007
Detailed Description ® X5083 Data Sheet June 15, 2006 FN8127.3 CPU Supervisor with 8Kbit SPI EEPROM This device combines four popular funct...
Datasheet PDF File X5083 PDF File

X5083
X5083

Overview
® X5083 Data Sheet June 15, 2006 FN8127.
3 CPU Supervisor with 8Kbit SPI EEPROM This device combines four popular functions, Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Serial EEPROM Memory in one package.
This combination lowers system cost, reduces board space requirements, and increases reliability.
Applying power to the device activates the power-on reset circuit which holds RESET active for a period of time.
This allows the power supply and oscillator to stabilize before the processor can execute code.
The Watchdog Timer provides an independent protection mechanism for microcontrollers.
When the microcontroller fails to restart a timer within a selectable time out interval, the device activates the RESET signal.
The user selects the interval from three preset values.
Once selected, the interval does not change, even after cycling the power.
The device’s low VCC detection circuitry protects the user’s system from low voltage conditions, resetting the system when VCC falls below the minimum VCC trip point.
RESET is asserted until VCC returns to the proper operating level and stabilizes.
Five industry standard VTRIP thresholds are available, however, Intersil’s unique circuits allow the threshold www.
DataSheet4U.
com to be reprogrammed to meet custom requirements or to finetune the threshold for applications requiring higher precision.
Features • Low VCC detection and reset assertion - Four standard reset threshold voltages 4.
63V, 4.
38V, 2.
93V, 2.
63V - Re-program low VCC reset threshold voltage using special programming sequence - Reset signal valid to VCC = 1V • Selectable time out watchdog timer • Long battery life with low power consumption - <50µA max standby current, watchdog on - <1µA max standby current, watchdog off - <400µA max active current during read • 8Kbits of EEPROM • Save critical data with Block Lock™ memory - Block lock first or last page, any 1/4 or lower 1/2 of EEPROM array • Built-in inadvertent write p...


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